内蒙古项目始于2007年，致力于通过植树造林抵抗沙漠化、恢复土地生产力。目前，在各方的支持和努力下，百万植树计划在2012年已经实现了第一个“百万棵树”，在2016年完成了第二个“百万棵树”的目标。在当地的项目主要包括三个部分：选择树种、植树、养护与监测。
The Inner Mongolia project began in 2007 with the express goal of planting one million trees, in order to counter rapid desertification and restore the land in Tongliao through afforestation. After years of dedicated work, MTP finished planting its first million thriving trees in 2012, and continuing into 2016, a second million trees were planted. The Million Tree Project implements a 3-step process: 'selecting tree species', 'planting trees' and 'maintaining and monitoring the site'.
1. 选择树种 Selecting Tree Species
根据当地林业专家和美国俄亥冈州立大学林业学院的意见，考虑到当地的自然环境，百万植树计划选择在通辽种植杂交杨树、樟子松、文冠果、小叶锦鸡儿等树种。
With input from both local forestry staff and experts from the Oregon State University Forestry Department, MTP chose four plant species that are well-adapted for local environmental conditions.
杂交杨树
Hybrid poplar
Populus simonii
能适应当地土壤和气候环境，并吸收大量二氧化碳。杂交杨树有很好的固碳效果，并且在干旱的环境中生长不需要消耗大量的水。
Adapts to local soil and climate and absorbs large amounts of carbon dioxide.
Hybrid Poplars are particularly effective at sequestering carbon and do not require large amounts of water to thrive, which is important in this desertified climate.
樟子松
Mongolian Scots Pine
Pinus sylvestnis var. mongolica Litv.
樟子松为常绿树种，根系发达，生命周期长。樟子松耐寒、防风、抗冻，在抵御沙化方面有很好的效果。
The Mongolian Scots Pine is an evergreen plant with strong roots and a long lifespan. A drought-, wind-, and cold-resistant plant, this pine species is perfect for fighting desertification.
文冠果
Yellowhorn
Xanthoceras sorbifolia
文冠果的种子含有相当于大豆所含两倍的油，可用于烹饪和工业用途。文冠果在该地区有成功种植的悠久历史，并将会带来生态和经济效益的双丰收。
Yellowhorn seeds contain twice the amount of oil as soybeans, and can be used for both cooking and industrial purposes. This species has a long history of successful growth in the region and will produce both economic and ecological benefits.
小叶锦鸡儿
Littleleaf Peashrub
Caragana microphylla Lam
小叶锦鸡儿是具有代表性的本土灌木物种，对荒漠化严重的干旱半干旱地区有重要的生态价值，能在有限的范围内保证生态恢复和经济发展的平衡。
The Littleleaf Peashrub is a typical local shrub and is crucial to arid and semi-arid ecosystems. As a shrub, it strikes an excellent balance between biological restoration and economic development.
2. 植树 Planting the Trees
每年百万植树计划的志愿者们到通辽参加植树行。志愿者们学习如何植树，并和当地员工、农民们一起给树苗安新家。在树苗生长初期，当地农民会间种作物，如大豆、小米、西瓜来获取额外的收入，这不仅能提高生物多样性，还可以给树木提供更多的营养。
当地两位全职的林业管理人员负责评估土壤质量、树苗的发育情况和间作措施等，当地农户也参与到植树的过程中。除此之外，百万植树计划还和美国俄勒冈州立大学林业学院植被管理研究合作开发中心开展紧密合作。
Every year, MTP volunteers travel to Tongliao for our planting trip. Volunteers learn how to plant trees and work with our on-site staff as well as with local farmers to give these saplings a new home and their best chance at survival. While the trees are in their infancy, local farmers are encouraged to interplant crops like beans, millet, or watermelons for extra income; this increases both biodiversity and the amount of available nutrients for the trees.
Our full-time forestry managers evaluate soil quality, the viability of the saplings, intercropping practices, and local community support before and after planting. Additionally, MTP also collaborates with the Department of Forest Science's Nursery Technology Cooperative at Oregon State University, USA.
关于志愿者和植树行的更多信息，请点击此处了解。
Find out more about how to become a volunteer and join one of our planting trips here.
3. 养护与监测 Maintaining and Monitoring the Site
百万植树计划会对树木进行长期的养护与监测：志愿者帮助修建树枝，以促进树木的生长； 项目组和库伦旗团委合作，让当地的农民和学生参与到监测和养护树木的环节里。在树木成材后，当地的农民将拥有林地的林权。林地调查是监测过程的重要环节，主要是由工作人员实地调查以及无人机技术完成的。通过每年收集数据，百万植树计划能够更好地评估项目的进展情况，例如成活率、降雨量、覆盖率、沙漠化程度、生物多样性、植被结构以及植物群的高度、直径、树冠大小，这些数据可以帮助项目组分析林地的长期长势。
MTP carried out long-term monitoring of forest plots: volunteers can also help to prune and trim the trees, which is critical to promote strong and healthy growth; MTP also works with the Youth League of Kulun Qi to engage local students and farmers to help monitor and maintain the trees. Farmers are licensed to harvest trees that have reached maturity on the condition that they replant on the harvested plot. Forest surveys are a major component of monitoring the reforestation efforts. These are conducted by drone technology as well as by in-field investigations led by our forestry experts. Compiling reams of data year after year allows MTP to evaluate metrics of progress like survival rate, rainfall, coverage, degree of desertification, biodiversity, vegetation structure, height and diameter, and crown size of flora. From these data measurements, MTP can analyze long-term trends in forest health and growth.
关于志愿者和生态调查的更多信息，请点击此处了解。
Find out more about become a volunteer and how to get involved in one of these ecological investigations here.
长期监测 Long-Term Monitoring
百万植树计划对林地进行长期的监测，以观测林地的生长状况。2007、2008林地是百万植树计划的第一片林地，位于内蒙古通辽市，主要种植樟子松和杨树。自08年开始，项目组持续性监测该林地的生长状况，在2019年对该林地进行了全方位的调查，包括树木存活率、密度、树高、地径、胸径、生物多样性以及郁闭度等等。下方是08至19年之间该林地的变化对比图，以及对2019年调查报告的部分展示。MTP carried out long-term monitoring of forest plots. Here‘s a look at data from our oldest forest plot. Located in Tongliao, Inner Mongolia, this plot was first planted with Mongolian scots pine and hybrid poplars in 2007 and this planting continued into 2008. Since then, we've monitored the growth and progress of the trees every year. Some of the data we have captured over time is shown below.
